ive been driving myself crazy trying to install a 933QS processor into a DA 533. i have found some teasers telling me to ground the 4th extra mounting hole wih 12V from the Powersupply.....i get no dice....the computer will no longer power up....the light turns on then off....as if a kill switch just happened...

what i did was install the procesor card, heatsink....rigged a nut and screw and ran LONG extra MOLEX yellow lead witha pigtail fitting from my extra connectors in the case....

CAN ANYONE HELP....i want to get this to work...any suggestions, please!

First of all, he used a different motherboard. Make sure the heatsink is not grounding itself on something. Double check with a voltimeter that the wire is getting constant 12v. Also, maybe you bus multiplier is too high. You need to check what the multiplier is for the DA 533 and then check the 933 bus multiplier. You may need to reconfigure the multiplier resistors. We need a MacTech to chime in.....Mod? Thats your cue.-maestro

i got it to work, i forgot to push the CUDA button....but it works and if anyone wants they can email me for further direction.....no multiplier or anything else....just a simple wire for ground/power.......i have a new machine now for cheap....

i found that as a the main teaser along with the G4 thread in xlr8yourmac.com

if you use that josehk's site and just visualize all that happeneing on a DA motherboard...you'll be fine.

notice the 2nd entry labelled "12V power to 4th mount point"i followed that to a T

here's my basic instruction set

1) open chasis and ground yourself2) remove heatsink and old procesor3) unscrew old DA processor (3 screws pyramid desgin)4) insert NEW screw plus nut onto 4th hole as shown5) reinstall QS processor...note...the screws align board+ZIF slot is on one side only6) screw down processor7) tap a YELLOW lead and run a line to the post you created with the screw/nut combo( i personally would just go out and buy a standard MOLEX extension cable-$3.99 and cut all the leads out but 12Vyellow and run it from an internal plug to the post. i crimped a cap just like the website shows.)8) screw down wire to post with another nut9) place heatsink on QS processor10) PRESSE CUDA SWITCH FOR AT LEAST 5 seconds11) B-I-N-G-O....you'll hear the startup chime!

prep time = find a QS module with a matching heatsink....tough!work time = maybe 10 minutes, if that!

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